2439781500 has 96 divisors (see below), whose sum is σ = 7651215936. Its totient is φ = 600556800.

The previous prime is 2439781481. The next prime is 2439781501. The reversal of 2439781500 is 51879342.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439781501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43059 + ... + 82058.

It is an arithmetic number, because the mean of its divisors is an integer number (79700166).

Almost surely, 2^2439781500 is an apocalyptic number.

2439781500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2439781500 is an abundant number, since it is smaller than the sum of its proper divisors (5211434436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2439781500 is a wasteful number, since it uses less digits than its factorization.

2439781500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125152 (or 125140 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2439781500 is about 49394.1443897958. The cubic root of 2439781500 is about 1346.2229126678. Note that the first 3 decimals are identical.

The spelling of 2439781500 in words is "two billion, four hundred thirty-nine million, seven hundred eighty-one thousand, five hundred".